Choose A, B, C, or D that best completes each sentence.

The Van Phục silk producers have expanded their silk garment goods _____ they can satisfy the varied demand for their silk. 

The temperature of the water in the jars is always one centigrade cooler than ______ outside.

water Jars made in Bau Truc are always favoured by people in dry and sunny areas _____ the temperature of the water in the jars is always one centigrade cooler

The clay is taken from the banks of the Quao River and is very flexible, durable when ______ .

To create a pottery product, a Cham craftsman only needs an anvil, not a potter's wheel, and other simple equipment and moulds and then uses hands to ______ pieces of clay into the works he wants.

The Cham counterparts, on the contrary, still ______ talent hands and simple tools.

The Kinh people have switched to using wheel as an indispensable ______

It is ______ that